Impsovemeit in



E. as. CLAPP.

Spectacles. y No. 79,898. Patented July I4, 1868.

fnwfw;

4 www; i 6% MW Mg. am@ 4w @atten gisten inganni @fitta ERASTUS S.CLAIROF MONTAGUE, MASSACHUSETTS, ASSIGNOR TO `IIIMSELF AND ISAACCHENERY, OE SAME PLAGE.

Leners Parent No. 79,898, ma July 14, 186s.

IMPROVEMENT IN SPECTACLES.

l To ALnWHoM 1T MAY eoNonnN:

Be it known that I, ERASTUS S. CLAPP, of Montague, i-n the county ofFranklin, and State of Massachusetts, have invented a ne and usefulImprovement inV Spectacles; and I do hereby declare that the followingis a full,

clear, and exact description thereof, which will venable -those skilledin the art to make and usc the same, reference beinghad to theaccompanying drawings,` forming part of this specification.

This invention has for its object to provide spectaclesfor those who usethem, which shall not require to be removed fromtthe nose when theglasses are not needed, whereby much trouble and inconvenience areavoided. And the invention consists in attaching, by,hinges, to aspectacle-frame (Without glasses) another` frame, containing glasses,and so arranged that they may be raised from the eyes without removingthe Erst-mentioned frame from the nose, or disturbing it in any manner,as will hereinafter be more fully described.

Figure 1 represents the adjustable frame, with glasses therein closeddown, as when in use. Figure 2 is a verticalsection of iig. I,through-the line :v x. Similar letters of reference indicatecorresponding parts. A represents a common spectacle-frame withoutglasses, but with bows attached in the ordinary manner for securing therame to the head. f i

B represents the boyvs. C `ie the adjustable frame, with glasses to suitthe eye.A The rings C', whih hold the glasses, are attached rigidly to aro`d-,D,4at e e. This rod passes through eyes el, which are soldered tothe top of the glass-rings of the frame A, as se en in the drawing, atd; i Y j 1 Y This rod D turns in the ey,es d, forming a pivot-hinge ateach ring.

f is a bntto'n on the end'of the rod'D, by which the yrod is turned andthe glasses raised, as seen in g. 2.

For thepurposeoi` holding the adjustableglasses and frame C intheposition seen in fig. 2, thereis a small spring, g-l attached to thecentre of the projecting nose-bow h, as seen in the drawing.

Transversely abross the rod D there is fixed a small flat piece ofmetal, "i, against which the spring bears i with a constant pressure, sothat, tvhen'V the glasses are down before the eyes, (or m use,) thespring, bearing against the piece ion the rod, holds the glass-framesteady and in place.

When the glasses areraised from the eye, as seen in iig. 2, the bearingot: -the spring against thepiece z', (as seen in the gure,) holds the.glass-frame in that position'.

It will thus be seen that, when the glasses are not needed, it is notnecessary to raise the spectacles to the forehead, (as is usual,) butonly to give t'he buttonfa slight turn with the thumb and finger, andthe proper and desired adjustment is made.

Having thus described vmy invention, I claim as new, and desire tosecure by Letters Patent- In combination with a spectacle-frame,` therod D, with glass-rings and glasses attached thereto, and madeadjustable, substantially as and for the purposes hereinA shownanddescribed. v

ERSTUS S. CLAPP.

Witnesses;

H. D. STEWART,V CHARLES Pri-ATT.

